Baking soda? The other bath additive which was only recently reccomended to me is apple cider vinegar in the bath to soak for soreness and general malaise. What you need is a warm fleece rice bag to curl around your neck and sit upon your shoulders. This works like a charm for me when I am in such a way as you are today. I’m truly sorry Thomas, no fun at all. But I’ll bet the cold water kept the heart and valves alert as well! As for me, I am suffering from sleep deprivation again today, so pardon any typos and the like as I am only animated by sheer will after rising at 0330 this morning. Dear Thomas, you have my virtual Tea & Sympathy.